ILMVBumpMap Interface

Interface Properties:

Type

Name

Description

VARIANT_BOOL

Enabled

Enables or disables the effect. If set to VARIANT_FALSE, the filter will pass the video samples intact.

Long

LightAngle

Controls the light angle on a horizontal plane (360 degree). Range: 0 to 360.

Long

Elevation

Controls the light angle on a vertical plane (90 degree). Range: 0 to 90.

Long

Depth

Controls the depth of the object, which will affect the shadow. 0 creates no shadow; higher values create deeper shadows. Range: 1 to 65.

Long

XOffset

Horizontal offset of the resulting frames. Negative values shift to the left; positive values shift to the right. Range: -(Width-1) to Width-1, where Width is the video width.

Long

YOffset

Vertical offset of the resulting frames. Negative values shift down; positive values shift up. Range: -(Height-1) to Height-1, where Height is the video height.

Long

Ambient

Controls the relative strength of a directional light. This property is used to control the shadow intensity. A higher value results in less shadow. Range: 0 to 255.

VARIANT_BOOL

UseBuffer

Flag that indicates which buffer to use. Possible values are:
VARIANT_TRUE: Use the buffer set in the SetMapBuffer method.
VARIANT_FALSE: Use the source video buffer.

If this property is VARIANT_TRUE but no buffer has been set using the SetMapBuffer method, the source video buffer is used.

VARIANT_BOOL

Invert

Flag that indicates whether to invert shadow and light in the movie. Possible values are:
VARIANT_TRUE: Invert shadow and light.
VARIANT_FALSE: Do not invert shadow and light.

VARIANT_BOOL

EffectAreaEnabled

Enables or disables the effect for a cropped video area. Area limits are set using the Left, Top, Right and Bottom properties.

long

Left

Left boundary of the effect area.

long

Top

Top boundary of the effect area.

long

Right

Right boundary of the effect area.

long

Bottom

Bottom boundary of the effect area.

Interface Methods:

HRESULT SetMapBuffer (BYTE *pBuffer, long lWidth, long lHeight)

Parameters

pBuffer

pointer to a map buffer.

lWidth

width of the map.

lHeight:

height of the map.

Description

Sets an unaligned buffer to be used in the bump effect.

Return

S_OK if connected, S_FALSE otherwise.

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